Who is the deadliest hacker?

As someone who follows the world of cryptocurrency and finance closely, I'm often intrigued by the shadowy figures who operate in the realm of hacking. It's a question that's been on my mind for some time now: Who is the deadliest hacker in the game? Is it someone who's made a name for themselves through high-profile heists and breaches, or perhaps someone who operates under the radar, quietly siphoning off funds and data from unsuspecting victims? What makes a hacker truly deadly, and who stands out as the most formidable threat in this digital age?